CentOS6.4上glusterfs安装配置
#删除卷gluster volume stop img
gluster volume delete img
#将机器移出集群
gluster peer detach 172.28.26.102
#只允许172.28.0.0的网络访问glusterfs
gluster volume set img auth.allow 172.28.26.*
#加入新的机器并添加到卷里(由于副本数设置为2,至少要添加2（4、6、8..）台机器)
gluster peer probe 172.28.26.105
gluster peer probe 172.28.26.106
gluster volume add-brick img 172.28.26.105:/data/gluster 172.28.26.106:/data/gluster
#收缩卷
# 收缩卷前gluster需要先移动数据到其他位置
gluster volume remove-brick img 172.28.26.101:/data/gluster/img 172.28.26.102:/data/gluster/img start
# 查看迁移状态
gluster volume remove-brick img 172.28.26.101:/data/gluster/img 172.28.26.102:/data/gluster/img status
# 迁移完成后提交
gluster volume remove-brick img 172.28.26.101:/data/gluster/img 172.28.26.102:/data/gluster/img commit
#迁移卷
# 将172.28.26.101的数据迁移到,先将172.28.26.107加入集群
gluster peer probe 172.28.26.107
gluster volume replace-brick img 172.28.26.101:/data/gluster/img 172.28.26.107:/data/gluster/img start
# 查看迁移状态gluster volume replace-brick img 172.28.26.101:/data/gluster/img 172.28.26.107:/data/gluster/img status
# 数据迁移完毕后提交gluster volume replace-brick img 172.28.26.101:/data/gluster/img 172.28.26.107:/data/gluster/img commit
# 如果机器172.28.26.101出现故障已经不能运行,执行强制提交然后要求gluster马上执行一次同步
gluster volume replace-brick img 172.28.26.101:/data/gluster/img 172.28.26.102:/data/gluster/img commit -force
gluster volume heal imgs full
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